Bad service after upgrading the Rain sim card

I have been using rain for sometime now but l am disappointed because a week ago l decided to upgrade from a 4g sim to a 5g router with 2 x 4g sim cards. However, since Tuesday when they delivered the router and the sim cards l have been trying to call the Rain support to activate the sim cards and the router to no avail. I have been calling and l am kept on hold for the consultant until my airtime runs out. Today R285 has been deducted from my account yet l am not using the data. I am very disappointed and if l don't get any help from them soon l will definitely cancel the my contract.