No signs for no refunds

I bought two screen protectors in December for a Christmas present, I only gave the best one as the present though, but when i bought it I was told i could return it. I went back after Christmas to return the screen protectors and get a refund. When I went to return them, i was told I could not get a refund but an exchange, yet no where in the store does it inform customers that no refunds are available. Eventually the manager came to help me, She has such an attitude towards me. I was told to fill out a form to request a refund from head office and that the head office only opens on the 12th of January. I did as I was asked. It is now the 10th of February and I have not received my refund, or any communication about what is happening with my refund. I am highly disappointed with the Vodacom4u store, and the attitude I was treated with, especially since I have every right to get a refund for my items, when it is not displayed that I may not receive a refund.