Extremely grateful

Dear Sir/Madam.
I write to thank you very much for your help in obtianing tickets for my recent visit to New York. I purchased tickets for numerous trips with you and want to let you know that I did not have a problem with anything. All the paperwork that I handed over was exchanged for tickets or passes and there were no delays whatsoever and for this I am extremely grateful to Attractions Direct. I am already planning (in my mind, at least!) next Christmas's shopping trip to New York and will have no heistation in purchasing even more tickets through you. I will also be recommending your services to my friends.
With many thanks for your assistance and efficiency.
Kind regards