Accounts not linked so I loose ebucks

I moved from Nedbank to FNB mid May. No stress here. When quoted, I was quoted for ebucks. I waited for all of June, while spending on active cards to see my ebucks appear in July - an arrears principle which I was comfortable with. July, no ebucks on my profile. I am now told someone didn't link the accounts, so I can only accrue points from July onwards. I have spent a small fortune on my cards, and the main benefit for moving banks has now not accrued. This is unacceptable, and probably a breach of contract. Resolution of the June points is the only acceptable answer.