Just wanted to vent my frustration - (I know that their Customer Service is most of the time bad).
As usual, having issues with miles getting credited after getting a ticket upgraded using vouchers with A3 (seat upgrade vouchers). Provided them with the original e-tickets (which shows clearly the issues paid fare and booking class).
After exchanging 4x emails sending in requested documents, the last request from them is a repeat of what I do not have, asking for a receipt which I have indicated I do not have as it was done via a coupon. Now total silence from them.

Sometimes I do think that all the red tapes within the department is just a joke and having lack of logical thinking people working behind the desk does not really help.

It is always the same pattern every time.

Cheers!