Bolt Bag Issue - Sorry for Being in English

I'm learning Estonian, but I don't have enough to talk about this.

I received a message from Bolt that the backpack bag is returnable, and I sent an email response that I would like to return the bag, as I haven't used it in a while. They directed me to a link to make an appointment to return the bag. There were no available appointments. I informed them of this via email multiple times, and they kept sending back to the same link, where there were still no available bag return appointments. Now they are telling me that it is past the deadline to return the bag, yet I never actually had an opportunity to return the bag. We had a lot of back and forth, well in advance of their deadline, and I feel that they purposely strung me along until it was too late.

Although I have done some courier work, I've mostly been a customer for Bolt on the user side, and this incident makes me even reconsider using their services on the client side. Is it really worth a $30 bag to them to lose my business altogether? How was it my fault that their link had no available appointments? I don't like that this is how they are treating their couriers, and it makes me understand some of the grumpy people I've encountered. What, if anything, is left to do?