My domincan Ex-wife used to work for one of the four telephone companies in the country. She worked in the IT department, and was assigned the task to investigate why the amount of phone activations was unexplainably increasing even though the prepaid cards used remained the same. It turns out, prepaid cards actually weren't being used for those new "customers". A deeper investigation showed that there was a huge network of cellphone dealers owned by a colombian vice president of the phone company who were activating cell phones with preloaded balance in the account. They were not using real cards to load the balance, and they were not charging the "customers" for the prepaid minutes. Those "customers" never made any phone call and hence never used the minutes. That's as far as the investigation went. My ex-wife was summoned to a meeting with the president and the suspicious vice president and was told to cease and desist. She did, of course, but was nonetheless laid off a few weeks later. She was harassed for a few weeks after being fired. Threatening phone calls and text messages were a daily thing. Some time later I was told this same colombian guy had been using this method or years. He would be hired at key positions in phone companies, set up the dealer network and start laundering money that way. It would ruin the company, but the job would get done and move one to the next one. Prepaid minutes are sold without a receipt, and that is a huge whole in the system. No wonder there are 4 telcos here and a line of others wanting to enter the market.