Hi Thabang
I don't think this is a 100% relevant to your specific situation but something to maybe use in the future.

How about including functionality within your 80 points for price?
Something like "Threshold Compliance" worth 20 - 40 points of the 80.
As someone with a higher price will always score lower on price (specifically) than someone with a lower price but it might get close if the more expensive company has good equity figures.
Including functionality will help to stretch the gap and technically "disqualify" these "non-compliant" suppliers.

The best is still to add to your TOR that failure to comply with the threshold will result in disqualification.

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Izak van der Merwe
INTENDA (PTY) Ltd.
www.intenda.co.za