The hotspot we usually use isn't coming up at all or intermittently comes up with one bar. It's been like this all weekend. Are these hot spots privately owned and if so does that mean I'll not be able to get it again ?
The BTWifi hotspots are predominantly supplied by BT Broadband customers Homehubs and they are under no obligation to maintain the signal.
BT have no control over the BTWifi hotspots so if the owner of the hotspot turns it off or if the signal becomes weak there is nothing that BT can do to correct it.
Problems with BTWifi are usually resolved by the owner resetting their Homehub but unless you happen to know who is broadcasting the BTWifi hotspot and you can ask them to reset their hub there is nothing you can do.