Thank you for reply back vs Thank you for replying back

Some examples from the web:

• Prompt when mailing list redirects private reply back to list
• 1 contacted. Waiting for reply...
• The Statement of Objections set a time-limit of two months for replies.
• Extensions to deadline for reply to SO
• The deadline for reply was set at 25 July 2013.
• The deadline set for reply expired at the beginning of August 2003.
• A period of 14 days shall be allowed for replies from the other approval authorities.
• The third party consulted shall have a deadline for reply which shall be no shorter than five working days but must allow the Agency to abide by its own deadlines for reply.
• As far as we are aware, only eight Member States have replied to date, whereas the planned deadline for replies was 6 September.
• The Commission wrote to Ministers for Agriculture on 4 January and asked for replies to an extensive questionnaire on the implementation of BSE-related measures.
• The Commission proposes a deadline for reply in such cases of 2 weeks.
• Similarly, the reasoned opinion adopted yesterday also allows five days for reply rather than the normal two months.
• A multilingual regime for replies to calls for tenders is essential if operators throughout the EU are to participate in them on a genuine basis.
• We do not have debates in this institution, but tightly controlled and orchestrated speaking time, without the opportunity for reply.
• We do not have debates in this institution, but tightly controlled and orchestrated speaking time without the opportunity for reply, hence the empty Chamber this evening.
• Deadline for replies to requests for information and enforcement measures
• The Commission granted an extension of the deadline for reply on 13 July 2012.
• You want me to do that thing where you pretend you can't talk directly to her and I have to repeat it and then she replies back to me and then...
• Thank you, thank you, thank you.
• No, "thank you" is just a thank-you.

Some examples from the web:

• Thank you for replying favourably to the General...
• Thank you for replying to our advertisement.
• Thank you for replying to my letter.
• As we have heard on several occasions, the Council persists in not taking the deadlines for replying to our questions into consideration.
• The deadline for replying was extended to 9 February 2009 at the request of the French authorities.
• By letter dated 2 July 2010, the French authorities requested an extension of the deadline for replying.
• By letter of 24 February 2011, the Portuguese authorities requested an extension of 30 days to the deadline for replying.
• By letter of 28 February 2011, the Commission services granted the extension of 30 days to the deadline for replying.
• time limits for replying to the statement of objections;
• The deadline for replying was extended on two occasions, until 7 May and 5 June 1999.
• Following a reasoned request from the parties, the original time limit for replying to the statement of objections was extended until 30 July 2004.
• The Commission intends to introduce, in consultation with the Member States, a strict deadline for replying to bilateral consultations.
• The Rules do not provide for replying to a Member who has invoked Rule 108.
• It reacted to the comments from third parties by letter of 14 October 2005, having requested an extension of the period for replying.
• The deadline for replying to that letter was 30 November 2008, but the Spanish authorities have still to provide any relevant information.
• By letter of 30 April 2003, France requested an extension of the deadline for replying to the Commission's request for information.
• What is the anticipated timetable for replying to his question? 2.
• After requesting on 2 and 21 May 2003 that the deadline for replying be extended, the Italian authorities replied on 10 June 2003.
• If the Commission draws up the order for replying to questions, it designates the Commissioners who are to reply specifically during their turn, as you can see.
• The deadline for replying, provided for in point II, is extended until 30 June 2006 exclusively for Theme 7 (Scheme to support peer review of national sustainable development strategies) in Annex A.