Price fixing is completely illegal. They can have RRP that's all.
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But this isn't price fixing. Price fixing is when two, let's say bread companies, get together and decide they will both sell for the same price and not undercut the other. You can't price fix if you are the only company producing the product. MSRP as mentioned previously.
Then again, this is not SA people, who knows what they are/aren't allowed to do there. I am willing to bet going to them with "Price fixing allegations" they will laugh at you all the way down the stretch where the firing squad is already lined up