India Infoline Finance [IIFL] — Selling shares without intimation

Sir, I have demat from IIFL bearing DP No. [protected]
Today I received message as "CHAND975 your settlement is overdue in T Plus 5 days for Rs 11620.49. Pls transfer funds to regularize the settlement and avoid action as per Risk policy. For assistance call IIFL Representative - [protected]"
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I was quite confident for getting call from IIFL before selling shares from my each holdings. But did not get any call resulting huge loss of my portfolio. Pl look into the matter and resolve the issue.