If you’re unable to purchase a number, please ensure:
Go to call history, tap and hold the contact, then select “Block Number”. You won’t receive further calls from them.
Banks sometimes place a temporary authorization hold when verifying a transaction. The extra entry disappears automatically in 3–5 business days.
Auto-mute may be active in your settings or triggered by your phone’s proximity sensor. Disable it in app preferences and retry.
Yes, most online services support CallMama numbers. However, some banks block VoIP-based OTPs for security reasons.
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