Chasing a Guarantor After Deposit Claim for Repairs

A tenant broke the top of the cistern. She has left the property and asked for the replacement to be taken from the deposit via the DPS. I emailed her the amount for this, replacement and labour. When she went to the DPS, she declined the amount due, stating the labour was too high.
 
I will now have to claim the deposit from the DPS. Can I also pursue the guarantor for payment?

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