Enquiry about kinds of offer

[IMaRtinI]

so i always wonder if the pin submit offers are converting well in pop traffic !! as we know A mobile pin submit offer will ask a visitor to enter their mobile phone number. Once the visitor has done this, they will receive a Pin number by text message. Once they insert this number, their phone will be charged and we as publishers will be paid the commission, so i confused because this kind of traffic is low quality, i have tried many creatives for Pin submit offers but ROI not that good. what do