The accelerator requires a minimum 0.0001BTC/KB fee, which is different to the total fee. The total fee paid is the size of a transaction multiplied by the BTC/KB fee.
The viabtc accelerator requires a minimum 0.0001BTC/KB fee. The blocktrail explorer shows one of your transactions has a fee of 0.00026455 BTC/KB which is more than double the accelerator's minimum.
https://www.blocktrail.com/BTC/tx/433e8212f87b65f35486783a4d2b428ea1bc8bcaaa50396a1b65e6e017187e95
Blocktrail shows your other transaction has a fee of 0.00022222 BTC/KB, which is also over the accelerator's minimum requirement.
https://www.blocktrail.com/BTC/tx/32a5754a7b9064a7f07a6a762dc9c9182579e520f4b5b48f8ce8f939a2cbda94
I see. It depends on whether the data length is rounded up.