[StuartFerguson]

Summary

• Add unit tests for HTTP pipeline exceptions across mobile top-up, voucher, and bill payment flows
• Verify each service returns the expected failure result and message
• Cover both post-payment and non-post-payment scenarios

Testing

• Added unit test coverage using a throwing HTTP message handler

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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