I ditched Tunnelbear some time ago and switched to Express VPN.  It's not free but works really well and the support is really good.  On line chat responds quickly and follow up emails quick too.  If a particular UK server isn't working at any time you can switch to alternatives.  iPlayer is really fussy now and you need to be registered with a UK address (preferably as a UK licence holder as they'll probably start checking soon).  If you want more details, pm me.  They usually have "recommend a friend" offers going.