OVERCHARGING OF ITEM: FROZEN DOLL

On the 26 April 2015 at 13h54, I purchased a Barbie Bicyle and a Frozen Toddler Doll. I located the doll and the tagging beneath the doll (on teh shelf) indicated a price of R149.99. I then took the doll and together with Ricardo (the Supervisor on duty) accompanied me to the cashier (21-Jamie) and I duly paid cash for the doll (R150.00) and downpaid R500.00 towards the bicycle.As it is my daughters birthday today, I contacted the store yesterday (21/05/2015) to advise that i am collecting the items today and require the bicycle to be assembled. I then realised to my shock and dismay, that my till slip showed the doll priced at R349.90 and not R149.90, as previously confirmed to me by Ricardo.I contacted the store and was told that they cannot confirm what the pricing of the doll actaully was on that specific date and that they are not willing to hand over the doll today, unless I pay the difference of R200.00, alternatively, i can get a refund.I find your customer service shocking and the store manager was not willing to liase directly with me as she had just returned from Durban. As a long standing customer of Toys R us, I find your service unacceptable.