Bad Service You pay for Services you'll never use at Vodacom

Very dissapointed at the level of service am getting on my 1st day with Vodacom, I recharged bought just4u for R12 60min now when I must make calls am told the number is invalid then incorrect

Customer care tells me it has high volume of calls it's been an hour now.. So is this how Vodacom works? After that been calling their Customer Care since 16h00 now it's 20h52 they still saying they have High Volume calls mine airtime is gone