They do customer service work for companies like Sears in the US. You must speak English and you can make about 100-150 dollars a month. Stick to snake oil. JH claims to make telephone numbers but who the heck knows since I never see his pay stubs.
Marcom is located in the free zone area of Puerto Plata and does do telemarketing, as I understand it. You need to talk to the boss, Rich Friedman at (809) 970-7200 work tel, or try the cellular at (809) 805-3289. You never know, perhaps there are better paid positions also. Best of luck!