VODACOM FIBRE SPECIAL

In November 2018, I signed up for a vodacom fibre service, via Vumatel Aerial Fibre, special that was running at that time, when I performed a coverage check at that time, the result was that the fibre network infrastructure was planned for that area, so I signed up a contract, received my router and waited patiently for my fibre service, now that the special is over, I no longer have coverage for my area, am I bound by my contract for life and or do I have to pay off my 24 month contract to cancel my order, "WHICH I DON'T HAVE COVERAGE FOR"