Finchoice Harrassment

I have 2 loans with Finchoice, I recently lost my job and haven't been able to pay the full installment, however I have been paying something every month even though it's not the full installment, I spoke to their consultants and made an arrangement but they keep calling me. Like 10-20 times a day everyday, until after 19h00 in the evenings, I literally just get off the phone with one of their consultants then the next one calls, from the exact same number just to tell me "oh sorry, I see you already spoke to someone, I'll make a note on the system". They also call from other numbers they have about 6 different numbers. They are harrasing me even though I am paying my accounts and it's busy making me livid. If this doesn't stop I'll have to open a case of harassment against the company.