A lot will depend on the phone you have or whether you are willing/able to buy another if your phone is locked to the carrier. Who is/was your carrier?
Do you need true unlimited data? I ask because most people with "unlimited" don't actually use huge amounts of data and would be better served with a lesser plan.
Thanks for the reply! Actually I was hoping maybe another reseller/business owner may be members here and would have any solution for me to offer my customers! But I do appreciate your time!