Vodacom the most problematic and dishonest company ever

Once again, Vodacam has proven to be major *******. Apparently my mom has unknowingly agreed to a new 12 month contract when she asked to relocate her fiber connection. How can she start a new contract when the existing one has not even finished. The call Centre cant seem to find the telephonic call where she agreed to this apparent new contract nor can they find the email agreeing to the new contract. Now they say the contract is for 12 months but will end in 2026. How can a 12 month contract that started in 2024 end in 2026. Do the math please Vodacom. I need this resolve.