Delays in processing my phone claim

Almost 3 month's delay on processing my claim. I submitted all documents in May 2020, initially when I was doing follow up, I understood because it's either they were understaff or working from home. Since June when we moved to level 3 I have been calling and getting contradictory messages. - Had to resubmit 4 times documes - The lady wrote wrong IMEI number - Excess fee was wrong - Order not processed but week before was told it was pro - The phone that was ordee not available had to change after a month -Yesterday when I call was told they submitted in complete documentation my order was only sent yesterday -I requested four times to talk with the team leader every time Ieave my number. - all the time I use my airtime to call, buying 100 minutes, you can imagine how much did it cost me calling since may to July. No one is calling me back.

All this things I have listed above I would ONLY hear about them when I do follow up. I'm angry and frustrated, its good they don't have a office I would have walked to that office.