Not following the rules prescribed by the Consumer Protection Act

I bought a mop from Verimark on 5 July 2022. A week later the handle could not hold, we had to keep it place with sticky tape. Tree weeks later the sponge was cut in half. We have a small boutique, 60 Sm, therefore the mop is not used for heavy duty. Took it back to Verimark in Bedford Square for a refund , it is the second time this happens and we don't want their mop anymore , the quality is unacceptable. The lady refused to give me the money back and sent the mop to Head office for inspection on 11 August. Client's service says that the product only has a guarantee of 15 days after purchase and they cannot give me the refund. Today, I visited the store again, demanding the refund, in accordance to Customer Protection Act, and I was informed that they can consider the refund when they receive the mop from HO. The reason is ... the mop is not with them. Ridiculous, the mop is with the company, we are the ones that have not had a mop in three weeks.