Bad online service - Dischem

I ordered three watches and paid for them, online on 7 Feb (1 girl's watch, 2 boys' watches). There was never any mention of "out of stock". I have received the girls watch only on 26 Feb - with the till slip showing I received all 3 of the watches (when ordering online, it says the order will be ready to collect in 2 to 4 days). I mailed Dischem on 27 Feb to inform that I only received the 1 girls watch and asked when I can expect the other 2 watches. On 1 March, I was contacted and informed that they put in the order again for the 2 boys watches and that this will take how long again as their warehouse does not have stock. I ordered this as birthday presents for my children who has their birthdays in March and this was one of the gifts they wanted, and now that I have paid for the watches already, may be standing with empty hands on their birthdays. I feel that if there is no stock anywhere of the product you order - AND PAY FOR - then this should not be available to order. The current situation created a lot of frustration and bad customer service from Dischem's side