I came to the counter with a customer to provide a saff foreigner.After that time 15.30 I've had a chance to introduce the promotion within the shopping center.
I came to the counter with saff to provide information to foreign customers , then at 15:30 I had the opportunity to introduce a promotion within the shopping center.
I came to counter with saff to provide information to foreign customers after that time, I had the opportunity to introduce 15.30 promotions in the shopping center.