Hello!! I bought a groupon for a car detailing from car toys this past weekend. I thought when I bought this it was for both, exterior and interior detailing. It turns our that the 89.00 was only for an interior detail. I would like to see if there is any way that I can get refunded for this Groupon? I tried to go back to Groupon app and cancel, but it is not letting me and the instructions say I need to contact the vendor in order to cancel.