********* behavior

My Daughter purchased an AC from them and it included the "professional installation". This was paid at the checkout, however she has now received an email to say that she must pay an additional R2300 because the installation will be "outside of the normal service area" They had her address on checkout, why not add additional costs there, like any other company does? The Consumer Protection Act, states that all mandatory charges must be clearly disclosed and agreed to before payment. She is just starting out in the world and now has to deal with an ********* business trying to take a chance!!