Disappointed customer

I lost my income due to Covid-19, I made arrangements with Vodacom because I was in arrears... Then without contacting me first they just blocked my phone and simcard. I then made payments and I struggled for almost 3months for them to unblock my phone. Now I'm liable for paying an account that I couldn't even use properly, I don't mind paying for what I've used but what I don't get is knowing my situation why should I be liable for their lack of services. I called alot of times only for their call center agents not to help me successfully or sometimes I just get cut off with no return call, stayed on line to rate them poorly and no one got back to me Vodacom shop was of no help as well . I've emailed the complaints department no response... I've asked to speak to team leader, still waiting for a call back. So this month decided not to pay cause I know now they will definitely give me a call which they did... Sad how they quick to ask for money but their service was so pathetic. I've been dealing with this from November so last week when they called me for their money I was told department that does unblocking was on leave and only got back... 3months holiday?/Sad excuse... So my phone, router as well as my old phone who my sister is using was blocked(a phone that's not even in my current contact) My sister had to go buy another phone cause at Vodacom shop they told her it's her simcard reader that's faulty, only to find out it was blocked. This is the worse experience I've ever received, can't believe a big company like Vodacom can treat their customers so poorly.