I bought a phone through Blue label connect , in less than 6months phone screen turned black and even the charging system was not working

I bought a phone through Blue label connect , in less than 6months phone screen turned black and even the charging system was not working. I phoned several times trying to report this and one of their consultants said they are aware there was a faulty batch sent out I must just be patient someone will contact me for collection. This has been going on since 2024 until today. I've requested several times to speak to the manager or team leader but nothing its like everyone's doing their own thing. Lately they would phone and I tell them how do I pay a damaged phone and their collection consultants just say just pay as Noone will collect if there's arrears....arrears they caused because I had to go and buy a new phone since their phone is still not working.....I am very angry with this company , there's no professionalism from their staff though they always say calls are recorded