Yea it's not an ipace issue, the current UK charging network is a disgrace. The most frequent chargers around me are ecotricity ... which while I could rely on them with Chademo they are next to useless for CCS and have been for 5 years, and chargemaster/polar who bought up loads of chargers and left them to rot meaning huge numbers of offline/faulty chargers or ones that only worked with cards that pay as you go customers can't have... well could have they just disabled them all and said tough.
I've found the best networks about at the moment are instavolt and shell (I've not got any ionity near me... and I wouldn't pay their rates) as I've had 100% success from their chargers and you just turn up and tap your cash card. There just aren't enough of them about.
I really wish Tesla would add some reliable networks to their "find a charger" and route planning as there's still huge areas of the country that you can't make a round trip from without either driving miles out of your way to hit a super charger or trying to find a reliable alternative.