SupportSupport for integration
Support for integration
and live operations.
Our dedicated support teams are here to help you through integrating for the first time, debugging issues, or raising questions about a transaction.
Channels
Pick the right desk.
01 · Engineering & support
Technical Integration
API integration, sandbox testing, webhook configuration, or any technical question about our platform.
technology@cslcapitaluk.com↳ Critical 4h · Standard 1 business day
- Include in your message
- Partner ID
- Description of the issue
- Request IDs / sample logs
02 · Your account manager
Account & Onboarding
Questions about your account, wallet position, KYC documents, or the onboarding process.
compliance@cslpay.com↳ Within 1 business day
- Include in your message
- Registered company name
- Wallet / account reference
- Stage in onboarding
03 · Compliance desk
Compliance & Regulatory
Compliance queries, regulatory requests, transaction monitoring or data protection concerns.
compliance@cslpay.com↳ Within 2 business days
- Include in your message
- Subject area
- Reference documents (if any)
- Deadline if applicable
Support hoursAlways on.
Always on.
Every channel.
Partners get round-the-clock coverage across email, WhatsApp and a shared Slack channel with our tech/product team.
Support hours · all channels
| Channel | Hours | Coverage |
|---|---|---|
| Email support | Monday — Sunday | 24 hour |
| Monday — Sunday | 24 hour | |
| Slack (Partners) | Monday — Sunday | 24 hour |
All systems operational · 99.987% over 90 days
Developer documentation
Build first. Ask second.
Integration guides, API references, and SDK documentation are available in the Developer Portal. Content is searchable and updated with each release.