Telkom - do they know their number?

A few days ago I reported on the Telkom website that the speed on my ADSL line was reported by my modem to be half of what it should be. Within seconds, I got an e-mail from them with the following contact information.

Tel: 0800 375 375
International: 0272010181

It is sweet that they thought of the hapless customer abroad trying to resolve the problems of the non-technical household left offline back in Mzantsi – I've been in that position – but could someone work out for them that 0 is not the international call prefix? My line is up to speed again, by the way, but I'm not sure whether it was due to technical intervention or natural healing.