For such tasks, I haven’t found a better solution than SimplyNode’s mobile IPs yet. The main secret is the exceptional level of trust: traffic goes through real towers of mobile operators with CGNAT, where hundreds of ordinary users hang out under one IP address at the same time. Antifraud simply cannot ban such an IP, because otherwise it will cut off a bunch of real people from the service. In addition, they have a great Pay-As-Go system — you buy traffic, and it waits for you as long as you need, without any monthly burn-ups or hidden write-offs, which saves a lot of budget during campaign pauses.