Step 1: Provisions of Table A.
When a company does not have its own Articles of Association, Table A of the Companies Act applies. It specifies that:
- At least 1 month gap must be between two calls.
- No call should exceed 25% of face value.
- Minimum 7 days' notice required.
- Calls must be uniform for all shares of the same class.
Step 2: Correct set.
Thus, all four provisions (A, B, C, D) are correct.
Final Answer: \[ \boxed{(A), (B), (C) \text{ and } (D)} \]