Businesses in Pinchbeck are likely to remain without phone lines until the middle of next week.
The businesses affected in Wardentree Lane and Benner Road include Crowson Motors Ltd (Volkswagen) and, we believe, Abbey Print and County Interiors.
Crowsons have been without a phone line since Monday morning and the problem is still unresolved.
A spokesman for BT said: “We have an underground cable which has developed some faults when water got into a joint in it.
“Engineers are currently onsite repairing this damage and we are aiming to restore service by the middle of next week at the latest but will, of course, be doing all we can to get the 65 reported faults cleared quicker than that if possible.”
All enquiries should go to their website at www.crowsons-spalding.co.uk
The other two companies can be contacted via their website at www.abbeyprint.co.uk and