Free sim card offer for united mobile customers

[hkr]

Originally Posted by ronwi

From the Travelsim ordering page:

The use of the Travel Sim card is expected to be a fair balance between free incoming calls and chargeable outgoing calls. Excessive use of free incoming calls will constitute abuse.

Found at: Travel Sim Card - 100% Free Roaming .

Well,

I understand the reason behind it, however, I very seldom initiate calls (even at home, even more so when roaming), but I do receive calls as people call me from time to time. OK, I can call chargeable numbers just to make my credit go lower but what percentage?