In the app I click web and phone shops and a list of shops appear. I click on a shop then click to request the shop and a message appears stating I must sign the company’s contract before I can request that individual shop. So I click sign the contract and scroll to the bottom to sign but on some of the ssecret shopping companies contracts I am unable to sign. I tap in the space where my signature should go but I can’t sign. Can someone help me to figure this out?!