So sorry to hear you are experiencing the same or similar issues that I have encountered. Currently I am evaluating ExpressVPN, Surfshark, and Cyberghost. ExpressVPN is 2x to 3x the cost of most competitors but generally gets the best reviews. All of these services have received excellent ratings from multiple sites. None have phone support. I have asked each one of these services in their chat box to reply by email as to why they think their service is better than their competitors. The only one who has replied so far in the last 4 hours is ExpressVPN, but their reply was only a ‘boilerplate’ response with vague and scripted marketing information. But at least they did reply in a timely manner as opposed to the rest that so far have not.
Frankly at this point I have not had any experience with either chat or email that would make one provider stand out above any of the others. So, my current plan is to give all of them more time for a proper response and should that fail, run some demos of each and then choose the one with the best user experience at the lowest price. Given the lack of phone support and the level of support I have so far received I can’t say that I have a current preference over any one of them. However, considering the price of Express VPN I was expecting a better response, which so far, I have not received. This has currently put them at the bottom of my choices.