Complaint

I purchased a Hauwei P30 on contract 6 months ago. Part of the reason why I choose this specific phone was because it’s Dual Sim friendly. I recently discovered that Vodacom locks the second SIM card slot making it a single SIM phone.. they did not disclose this when I made this purchase. The exact same phone from Telkom goes for the same price and allows 2 SIM cards. My problem is I’m paying for a Dual sim phone yet they’ve blocked 1 SIM card slot without my consent and without disclosing this to me before purchase. I want an explanation as to why this was done and to know if it can be solved failure to do so will result in me taking the legal route as I feel I’m paying for something yet I’m not receiving full functionality.