Also you do not have a "LearnerDL (Driving Licence)", you have a Learner
Permit.
"To be clear: the learner driver is an unlicensed driver.
The learner holds a permit not a licence.
The permit sets out the basis upon which the learner is allowed to drive.
A learner driver, when unaccompanied, breaks the terms and conditions of that permit.
In addition the learner driver, when he or she drives unaccompanied, may be in breach of the terms and conditions of a motor policy, the contract with the insurance company.
By driving unaccompanied it is possible you have, or will have, misled an insurer.
The contract of insurance is unequivocal: you must adhere to the law.
Therefore you must at all times be accompanied and supervised."
There is an online campaign to the effect that the law on unaccompanied learner drivers coupled with the current 'Crashed Lives Campaign' stigmatises the learner driver.
So the insurance company can claim that you misled them by saying that you held a Driving Licence for the car, which you do not, and therefore are not insured.
As Brendan said, consult a solicitor.