Blatant Misleading Advertising by Takealot/VISA

I am a client of Takealot and as such receive ongoing communication from them. Recently they offered "Get R 200 Off your next shop" when paying with a VISA card with no clear indication that there was any restriction on numbers. This offer was advertised as being open between 1 August and 30 September 2019 in order to qualify for a voucher. On 19 August 2019 I placed an order based on the email I received and when I did not receive a voucher I queried this and received a terse reply stating that they had reached their maximum number of coupon redemption! This is blatant misleading advertising as no communication was published indicating that this offer was closed due to the response received - Both Takealot and VISA card must have made a ****ing at the expense of its consumers which is nothing less than a con for which they should be taken to task about. Sorry Takealot I will be very hesitant to use your service in the future.