Inconvenienced becuase cell c is sleeping

i received my upgrade phone from cellc however they sent me the wrong sim card with it ( being a service provider you would expect them to know what sim cards go with what phones) i then requested that they send me the proper sim card of which the aforementioned consultants and more told me i must wait 3-7 working days or i must go to a cellc store and buy a nano sim myself an and they will reimburse me - for what? a R10? i understand that the 3-7 days is procedure but why must i wait another 7 days for a sim card when i couldv had my phone up and running? why do i have a new phone that i now cant use immediately because cellc is sleeping there!!! i think its very unprofessional that I have to correct cellc mistake had it maybe been my fault then no problem but now i am phone-less as i was expecting a correct parcel from cellc. i dont think its fair and neither is it ethical for the staff to have this 'don't care' or 'sorry that's your problem' attitude, I must say i am utterly disgusted in the service i have received and i will not recommend or even take another contract out with cellc. I'm incredibly unhappy with the service of cellc, its a shame so many people use you them!!!