Playtomic rating?

Had a very frustrating game yesterday. Current rating started at 0.5 and trying to get into games is tough. I’m significantly better I’d say probably around 2 - 2.5. After having won so far in the 5 competitive games played, rating hit 1.25 or something. Good news, as I’m finally getting accepted into more competitive games for my level (no shade on lower rated players). Yesterday however played with someone 0.7 vs 2 0.5s… we got killed because the 0.7 on my team literally couldn’t return any shot, any serve etc. no problem with beginners at all but I was very surprised at the 0.7 rating. Checked her profile and she has played 15 games, never won and her rating has never changed. Which makes me think can I boost my rating and fix it? She was lovely but it took a 0.3 hit to my rating so back below 1 and all down to their rating systems. Cost me £40 for the 1:30 as well. Just a shame as even the other players were not really getting value for money either. The lady was lovely but I’d suggest she change her rating down a little to balance it. This is clearly not anything to do with anyone’s ability but not come across this before and has made me very dubious of using Playtomic