After my divorce a routine credit check uncovered three pages of County Court judgments and defaults listed against me and my former wife. I knew nothing about these and can only assume my wife had been forging my signature from the early days of our marriage.
If you have yet to reach a financial settlement following your divorce you should raise this with your solicitor since it could obviously affect the settlement terms. If your wife has been ordering goods in your joint names and not paying for them then the suppliers are only likely to be co-operative if there’s a prospect of payment. It will certainly be worth contacting the credit reference agencies to inform them that your finances are no longer linked with those of your ex-wife.