Zando return policy is ****ed up

I've recently purchased items from Zando and I'm not happy with some of the things and I want to return them but they no longer have an option for returns on their app so I went to Facebook for assistance and I was not assisted ,I sent them an email and I was sent a code and a link for Pargo,I used the link and went to the stores for pargo drop off I was told that the stores are only used for pargo click and collect and not drop offs ,therefore I can not leave my parcel there. I sent an email again giving them feedback but I was not responded.And those things I bought I was using payflex and they are deducting for things that I don't want anymore. I'm so angry because when I call their 021 is just automated msg 😑 .They are not professional I left a msg on Facebook and email but they don't call to check if I managed to get help since they are an online store