HSBC Service
I attempted to make a transfer of AED 36000 to a UK bank in early February, they completely screwed it up sending the money to a non existent account in Abu Dhabi. HSBC have admitted their mistake but still refuse to even put the money back in my UAE account until they themselves get the money back from Abu Dhabi.
50 plus calls to anyone I can contact and still no result.
The trouble is I don't think any bank in UAE will be much better, there is no regulator and writing this is probably the only way I can hurt them at all.
In the past, I have been reasonably satisfied with what they have done but I am only measuring them by the standards I have come to expect in this region.