Phone in repairs for 2 months

I sent my Samsung phone in for repairs to the Bluff Branch in Durban on 18 November 2021. The warranty was due to expire on the 31 December. However, Mr Price/Samsung delayed fixing the phone until the warranty had lapsed. Now I have received feedback that due to the lapse in warranty I need to pay R270 for Samsung to release my phone. Another concerning issue is that they are now saying that the phone has water damage. I sent the phone in due to an issue with the charging port. I have been given the run around and still do not have my phone and it is the 13 January. Please can somebody advise me on a resolution for this matter as I need my phone as a matter of urgency. I cannot pay for a phone that has water damage that didnt exist before I sent it in for repairs.