What is the discrimination?
How do you know it is anything to do with colour?
I understand that you say you saw instances of being treated differently to others but what is the evidence that it was your colour?
Oh yes, I understand the background between Carribeans and Africans.
There are always a number of problems with this type of thing. The greatest probably is that allegations of racism are made almost as liberally as allegations of abuse and unfortunately that seems to taint all allegations. You always start off from a position of disadvantage because of the volume of frivilous claims.
Clearly you can complain. Whether it was a racial issue or just that she did not like the look of you for any other reason she should not, from a customer services point of view, be treating you differently.
The question is whether or not, if that fails, you could pursue legal action.
The Equal Opportunities Act is quite clear. There cannot be discrimination.
The difficulty is always proving discrimination although you do only have to reach the civil standard.
It is quite unlikely to come to the need for legal action anyway. They will want to put it to bed swiftly and are likely to make some form of offer.
Can I clarify anythign for you?
It is not actually particularly expensive to sue. You can issue at the county court using the N244 forms.
The cost is in using a solicitor but they do protect you from the costs of the other side.
Actually just to exchange letters it would probably be an amount in the low hundreds and that might well dispose of the claim so it would be worth looking at.
All the best.