Awful experience, will never use this courier company again. They don't even know where my package is?!

Had an awful experience with PAXI and then even worse customer service after complaining. Firstly my package got sent to the wrong place. PAXI states that if a package is not picked up in 14 days it will be sent back. After A LOT of calls with no help I had to wait 77 days until I finally got the notification that they are sending it back to me. That is also supposed to take 7-9 days. Again I'm on day 21 not knowing where the package is or when it will arrive. After what feels like the 100th call to PAXI, asking to speak to a superior who can help me, they said they will email the courier company and call me back. I obviously never got a call back from them. They also told me when the package arrive at the original store I sent it from, I will have to buy a new bag and hope that one will be sent to the correct location. I've never experienced a courier company with this bad service... who knows if they even have my package or lost it after this many months?