We also have this problem. It's common that people come and go and not being able to remove contacts is a big problem in the Pickup Requests.
We have a typo in the contact info we entered. And its the gate code the driver needs to be able to enter the facility. So we had to add another contact, but sometimes people still pick the first one and the driver shows up with the wrong gate code.
I see this issue was first entered back in 2021. Do you even work on this app anymore?