Is your housing association happy for you to have the charger but just not willing to put in writing that that space is solely for your use? That’s pretty much where I was at with mine. My housing officer from the HA came out and spoke to the surveyor on the day and said to him that’s his space we just can’t put it in writing so I don’t know if that also carried weight, maybe you could see if you could get a rep out from your HA on survey day to argue your case. I genuinely think I was lucky tho and fluked it. Fingers crossed for you tho