Sim Cards For Verifying Accounts

Hey BHW members, I've recently begun to dive into the world of IM. One of the ways I plan to do so is through social networking. I have followliker and accounts set up on the software. Now many people including myself have had the issue with having to phone verify accounts using whatever means necessary. You can no longer use text apps as a sufficient way because the numbers are used up or do not register. Now my question is people have been using multiple SIM cards to do this. If I have an iPhone 6, how should I go about buying the cheapest SIM cards, and from where to do this method. Sorry if this is a nooby question, I'm new here and wanting to find the best way to solve this problem as I've seen many other people have it as well. Any help would be appreciated!
Thanks, - Austin

These accounts are through Instagram as well if that changes anything

Hey, I can get unlimited SIM cards for verifications if the phone number needed for verification isn't country specific (I mean if you're looking for phone numbers from just any country) I don't know how to go about the iPhone 6 for phone verification, I've never used an iPhone but then you can use my help

yes you can buy the cheapest you get ......