Probably, you got a mislabeled one. If it is important to you, and if you still have the receipt, and if you have a photo showing the flower color (the last may or may not be necessary), then I would go back to whoever sold it to you, and complain. They SHOULD give you a pink one or refund most or all of your money. If you don't really care, and it's growing well, enjoy it, and let the matter go. You might want to give the seller a heads up that there is a problem, just for their information, but that's up to you. To my knowledge, soil acidity or lack thereof has no effect on dogwood bloom color - it's only certain hydrangeas that change color according to pH.

Yes i can send you a few cuttings of the busy lizzy show in my photo ..if you are on Facebook you can easily find me...or you can write me a letter my address is 24 glenamoy lawn Mayfield Cork Ireland..i would have to figure out the best way to send it as these cuttings are fragile but im sure i can find a way..either way let me know what you think.. Regards David...

Begonia?

Dianthus barbatus, Sweet William. I have never heard them referred to as Pinks. That name usually applies to other small flowered Dianthus with single rather than bunched flowers. The scent of SW is nothing like as delicious as Pinks.