Frustrated with Learning Class Ltd.'s lack of response

It's now been 9 days since my initial complaint, and Learning Class Ltd. still hasn't addressed the core issue. I've received generic responses that don't actually solve my problem with their installation service.

Dear valued customer, Thank you for bringing this matter to our attention. We at Learning Class Ltd. take all customer concerns seriously and are committed to ensuring your satisfaction. We have reviewed your complaint regarding our jeans and have initiated an internal investigation (Reference: REF-11ED5164). One of our specialists from our Consumer Affairs will be contacting you within the next 12 business days to discuss this matter further and work towards a resolution that addresses your concerns. We appreciate your patience and look forward to resolving this matter to your satisfaction. Sincerely, Avery Thompson Brand Representative Learning Class Ltd. Customer Relations