The service you get is straightforward, easy to use, friendly and confidential, and of the highest quality.
Here are a couple of comments:
Thank you very much for you assistance, as always you are very helpful and it is greatly appreciated.
Many thanks, once again, for translating the copy into Welsh not only with great accuracy but ahead of time. Such is the excellent standard of service we receive from you at all times, that we now come to expect it as the norm. However I don’t think it should be taken for granted, hence this letter.