Too much wifi is ****

Very very **** customer service. They have the slowest speed also. I have the 20mbps line but I a 250mb file takes me almost an hour to download. I constantly log ticket but then no1 gets back to me,then I have to call them then they say they will fix it. They always tell.me to test my speeds and told me they fixed it but it's still not even close to 20mbps. They even put my wifi off yesterday but I paid them on the 26th of Jan already. I called them today,they sent me messages confirming that they received my payment and it even states on the payment link they sent me for March that my wifi is paid up until 29 Feb but right at this moment I am still disconnected. I have been trying to get ahold of them since 17:30 when I got at home but to no avail. Yet they state on their website their customer service assistants is available until 20:00 Monday to Saturday and until 17:00 on Sundays and public holidays. Most **** ISP EVER. It's only been problems since I signed up with them. They never even once sent a technician to check if my dish is aligned properly or something. They just don't give a ****.