I've found reliability issues using VPN's (Vypr, ExpressVPN & NordVPN) when accessing iPlayer, ITVHub, More4 and My5, as well as UKTV Play and ABC Australia, due to their increased monitoring of VPN providers and growing barring IP address lists.
So, I've installed a PC at a techie friend's house and use TeamViewer to connect securely end to end, so no bandwidth reduction going via a VPN service provider.
Once connected I'm in territory so no troubling accessing the UK TV providers.
Also use ChrisPC Videotube Downloader Pro to download any programmes I might want to watch at a later date. Use Teamviewer to file transfer, or upload to Google drive and then can watch on my mobile. Simples.