[PhotoJim]

Prepaid SIM operators require no loyalty of us as customers. In exchange, they have no obligation of loyalty to us.

Prepaid operators that do not act fairly and consistently will not attract as many customers. Those that are fair and reasonable will attract more customers.

As with any product, vote with your dollars (or euros or pounds) and choose products in context with all the competitive options.

I hear the word "scam" bandied about as if every business in operation intends to defraud its customers. While a handful clearly do, most are honest. Changes in rates are due to economic necessity or market forces.

To avoid rate increases, use your minutes up. If you don't use many, use a provider that forces you to buy fewer prepaid minutes so that your risk is less. (Expect to pay more per minute, however.)