Take 5 Oil Change

I recently took my my BMW x5 suv to take 5 for an oil change while there I was told that we needed a coolant flush and we proceeded to get it since the coolant flush was performed my car kept showing low coolant on dash. I took my vehicle back several times for a free top off which was offered to me each time I informed them about the coolant light repeating and each time I was told everything was ok after a recent oil change on June 22nd 2023 after informing them about the coolant I was again told it was ok my car is no longer drivable because the radiator was destroyed because the coolant flush was done wrong I have consulted 3 mechanics and the BMW dealership who has my vehicle right now for repairs that were caused by take 5 oil change 709 N. Lake Dr Lexington SC I intend to hire an attorney who I have already spoken too and resolve this issue thank you