H&M Ignored My Complaint After Installment Payment Failed on Mobile App

On September 20, 2025, I placed an order through the H&M mobile app (Order No: 70879027591) and selected the installment payment option. However, when I checked my bank statement, I noticed that the payment had been processed as a single charge instead of installments.

I contacted both my bank and H&M customer service about the issue. The bank informed me that the transaction had been sent as a one-time payment by the merchant. When I reached out to H&M, they told me to speak with my bank and offered no resolution or explanation.

I would like to understand why the installment payment option didn’t work and request a clear explanation from H&M about whether this issue might happen again in future purchases.