The acquisition of the insurance by the contractor as set forth in the preceding paragraph shall not entitle the contractor to refuse liability in the event the actual damages exceed the coverage value of the insurance and/or constitute the amount of the deductible, for which the contractor agrees to be solely responsible. In the event that the customer has made payment for such damages , the contractor agrees to indemnify said damages to the customer together with interest at the rate of fifteen percent per annum on said payment