unprofessional service and lack of empathy

we rented a car from Thriftys from the 30/4/ to 3/5/21. I sent numerous mails,back and forth to their agent,Taryn, who assisted me promptly. I did this, to try ensure there were no hiccups, but alas, due to their lack of communication and professionalism, we got shafted!!!. they over billed our deposit by 300%, leaving us cash strapped and to left to fend for ourselves. they didn't seem to care about it,as they now have their money and seems they wouldn't give a damn. I sent them a mail, asking for assistance, a call back...none received. I have asked for a manager,s name number or e-mail...none received and did receive a curt mail back that the branch was spoken to and our refund is processed. it seems now that our business is over, they are totally indifferent and any further customer care, is not coming our way. forthcoming travellers, take note !!!!!!!!!!!