請問點用英文問客人幾時可以上去佢公司收票

hi, u can say ...
Hi, Mr XXX, how are you today? It's calling from (Your name) of (your company's name), I just want to make sure that you receive the latest statment or not?
Is everything ok on the statement? .... so what is the best time for us to collect the cheque?

或者你可以這樣說的
With reference to the statment (Reference number:xxx) our company send to you previously, I would like to check with you details on the statement. If the statement is correct, will it be possible that we collect the charges on xx-yy-2009?

Thank you very much for your attention. We look forward to hearing from you.

你問佢: HI! i want to ask you before i had sent a statment to you can you receive it is there any question?when can i go to your comrany to get it ?