Two weeks ago the firm reckoned the extra costs could be at least £35 million, so it scrapped the final dividend for the year to March 31 to save cash.
Amigo said in a statement: "Since our announcement on June 8, Amigo has continued to see a substantial increase in the rate of complaints.
"The Company is currently in discussions with the FCA to reach agreement on a variation of the VReq. The variation is anticipated to agree to extend the date of completion beyond 26 June 2020 and a corresponding expansion of the backlog of complaints to be resolved."