I have been using this service for over 10 years now so far it has always worked well with my needs when searching trademarks or registering them in other countries if required! When there is an issue that arises they usually respond very quickly to resolve any issues within 1-2 days after receiving notification from me regarding said situation/issue being resolved as soon i receive their response via email / text message etc..
So no complaints at all about TP's customer support team!! You can't go wrong here by even thinking twice before you register your business mark online!! Get registered fast & effectively. The only thing which took time was getting used too but once familiarised its easy!