1. UAT is perform by people who do not know the flow of system and not even the project managers who handle the project. Problem logs are raised because everyone "thought" our system is at fault because they never study anything of the project before UAT starts.
2. Project managers do not know anything of his/her own project and insrtucted the vendor to be fully on top of everything because vendor is the inventor of the system.  (I am confuse who is my boss now and who is the users of the system in the future)
3. Testers who perform the UAT does not have any single common sense of any common sense, same goes with the project managers. Such common sense does not require any IT knowledge and yet the whole team at the client side including supervisor and project managers do not even aware of their own mistakes. (I am confuse and not sure is my IQ is too low or their have super IQ level which I failed to understand)
4. Tester is asking vendor what is this and that, while everything about this and that were the result of their own business team functional requirements.
5. A bunch of documents need to be re-write in plain English because no one understand technical terms and suprisingly not even their IT team members can understand the technical terms as well.
6. Everyone in the bank requesting "Vendor to provide 101% support to us". At the end, vendor need to provide 1001% support because their lame excuse "no proper handover", we are now doing their IT team members work as well.  (Thanks to "no proper handover")
7. Signed off items from previous round of UAT are claimed not working so well because now different testers are doing the test, reason being: different testers has different perception. So vendor needs to change it accordingly.  (My take is no changes to be made because of "perception" difference)
8. A bunch of documents which are dated 2 years back need to be re-sent to the project managers because the documents are now no where to be found.

Everyday I pray to myself to have healthy stamina and brain with good memory to continue the battle with all the above items.

Everyday, I digged my memory and emails to look for evidence of what had transpired since the last 2 years to guard the "fortress" of our system.  I cannot afford the client to simply blame on the system when they themselves are actually do not know anything because of "no proper handover" by their ex-colleagues. "No proper handover" is the lame-st excuse given to us, which I don't even bother to believe it 0.001% at all.

High endurance to temperature and blood pressure fluctuation is needed for this battle.                      May the Force be with Me!!