Unreacheable for debit order change option

It's so hard to contact vodacom for a debit order banking details change, there's no email address when I look it up on google, the TOBI chatbit is useless, he only asks for debit order date change, I've dialled all vodacom numbers I could find online and couldnt find help on all of them. I cannot be expected to visit a branch to change banking details when there's an app, emails and calls, not in 2025, NO WAYS!