LACK OF INTERNAL COMMUNICATION RESULTS IN HARRASSING CUSTOMER

For years I was a loyal and satisfied customer of Takealot. An now they destroyed all that goodwill by failing to communicate internally, not keeping to agreements and harassing me. I recently purchased a number of items including a five pack of 10 coffee pods (yes I know its something small). Takealot delivered only one pack and not the five pack. The only way I could get hold of them was on facebook messenger. An agreement was struck that I will accept the single pack and they will credite me the balance of R280. All fine and happy. Then the harassment started, I kept getting messages and calls to collect the item to be credited (which I NEVER RECIEVED). I try and reach out on Facebook, where the communivation trail is clearly visible and NO ANSWER. The last two days I get calls and when i answer just silence - it seems that the agent just wanted to prove that they phoned. Last night these calls continued until 23:41 COME ON! TAKEALOT! DONT MAKE MISTAKES IN DELIVERING THE WROING STUFF AND IF YOU DO FIX IT STOP HARRASSING ME - THIS IS STUPIDITY