Collections sandbox subscription is "Active" but its backend never responds — token & apiuser endpoints time Hello MTN MoMo team,I'm reporting a sandbox issue that started around 7 July 2026 and that I've been unable to resolve through the usual troubleshooting. I'd be grateful for your guidance on the likely cause and the recommended next step.SummaryMy Collections product subscription shows Active in the portal, and its subscription keys are accepted by the API gateway — but every request that is passed through to the backend hangs and never returns, timing out after roughly 30 seconds. This affects token generation and API-user management alike, so I cannot obtain an access token or provision a new API user.Behaviour observed (reproduced independently from two different networks using raw HTTP, so it is not specific to my application or hosting):Request Result POST /collection/token/ — valid Collections key + existing API user Times out (~37s), no response GET /v1_0/apiuser/{referenceId} — existing API user Times out (~21s), no response POST /v1_0/apiuser — create a new API user
