Maybe you will consider T-Mobile ONE which has Kickback ($10 discount for using <2GB a month per line), AutoPay discount ($5 off per line for up to 8 lines) and the taxes fees included. Plus, you get to keep the great benefits of Simple Global which is what you've been using to roam in other countries.
I didn't know there was a $10 discount, per line, for using less than 2G of data. And, I believe you get faster data overseas.
I would NEVER give anyone access to my bank account. What if there was an error in billing? It's one thing to instruct your bank to pay a fixed amount to your mortgage holder. NOT for bills like electric or phone that can vary.
I'll look into this. Thanks.